JP4050608B2 - Key device with drunk driving prevention and anti-theft functions - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automobile key device having a drunk driving prevention and anti-theft function.
[0002]
[Prior art]
In recent years, traffic accidents caused by automobiles have become a major social problem. In particular, accidents caused by drunk driving can be said to be accidents caused by terrible weapons that can take the lives of many others as well as the driver himself.
As is well known, the revision of the Road Traffic Law (enforced on June 1, 2002) has strengthened penalties for those who have performed malicious and dangerous driving such as drunk driving. Especially for drunk driving, the penalty is raised, and the alcohol concentration in the exhalation has been reduced to “0.15 mg / liter or more” from the past, due to the threat of punishment. We are taking measures to prevent the occurrence of such a situation in advance.
[0003]
However, it is the current situation that accidents caused by drunk driving are not cured by the threat of such punishment alone, and there is a further demand for measures that make it impossible to drive the car itself.
As a countermeasure, there has conventionally been an alcohol component detection device that detects the alcohol concentration contained in the exhalation of an automobile driver to physically prevent drunk driving.
For example, in the device described in Japanese Patent Publication No. 51-21698, one end of a pipe is connected to a suction pump, the other end of the pipe is opened near the driver's seat in an automobile, and the driver's breath is drawn by a suction pump. It introduce | transduces in a pipe | tube and detects alcohol concentration from the driver | operator's expiration | expired_air introduced by the alcohol concentration sensor provided in the middle of the pipe | tube.
[0004]
As a sensor for detecting the alcohol concentration, for example, as described in JP-A-63-172953, a metal oxide semiconductor detection element is heated with a heater, and a semiconductor according to the concentration of alcohol gas is used. There is a heated alcohol concentration sensor that detects an alcohol concentration from a change in air conduction.
[0005]
[Problems to be solved by the invention]
However, the alcohol-alcohol component detection device described above must be installed in the interior of a car with equipment components such as piping for collecting the driver's breath, a suction pump, and the alcohol concentration sensor as described above. There were problems of space and high manufacturing costs, and there were difficulties in practical use.
[0006]
The present invention has been made to solve the above-mentioned problems, and adds an identity verification function and an alcohol detection function to the car key itself to prevent theft without causing a problem of occupied space and a high manufacturing cost. It is another object of the present invention to provide a practical key device with a drunk driving prevention and anti-theft function capable of preventing drunk driving in advance.
[0007]
[Means for Solving the Problems]
The key device with drunk driving prevention and anti-theft functions of the first invention is
Fingerprint detection means for recognizing a human fingerprint and converting it into an electrical signal;
A first comparison calculation means for comparing and calculating a fingerprint detected by the fingerprint detection means and fingerprint registration data registered in advance;
A fingerprint determination unit that receives the output of the comparison calculation unit and determines whether the fingerprint of the registered data matches the fingerprint detected by the detection unit;
Alcohol concentration detection means for detecting the alcohol concentration of the same human being converted into an electrical signal; and
A second comparison calculation means for comparing and calculating an electric signal from the alcohol concentration detection means and a predetermined alcohol concentration reference value;
Alcohol concentration determination means for receiving an output from the second comparison calculation means and outputting an electrical signal when the alcohol concentration detected by the alcohol concentration detection means is less than or equal to a reference value;
When the electrical signal indicating fingerprint matching from the fingerprint determination means and the electrical signal output when the alcohol concentration from the alcohol concentration determination means is below a reference value are AND-output, the lock mechanism is released and the key holder Car key projecting means for projecting the car key from the main body;
It is characterized by having at least.
[0008]
The key device with a drunk driving prevention function of the second invention is
Alcohol concentration detection means for detecting human alcohol concentration by converting it into an electrical signal;
A comparison calculation means for comparing and calculating an electric signal from the alcohol concentration detection means and a predetermined alcohol concentration reference value;
Alcohol concentration determination means for receiving an output from the comparison calculation means and outputting an electrical signal when the alcohol concentration detected by the alcohol concentration detection means is less than or equal to a reference value;
An automobile key protruding means for releasing the lock mechanism by an electric signal output when the alcohol concentration from the alcohol concentration determining means is equal to or less than a reference value, and the automobile key protrudes from the key holder body;
It is characterized by having at least.
[0009]
The key device with an anti-theft function of the third invention is:
Fingerprint detection means for recognizing a human fingerprint and converting it into an electrical signal;
A comparison calculation means for comparing and calculating the fingerprint detected by the fingerprint detection means and fingerprint registration data registered in advance;
A fingerprint determination unit that receives the output of the comparison calculation unit and determines whether the fingerprint of the registered data matches the fingerprint detected by the detection unit;
When an electrical signal indicating fingerprint matching is output from the fingerprint determination means, the car key projecting means for unlocking the car mechanism and projecting the car key from the key holder body;
It is characterized by having at least.
[0010]
The key device with drunk driving prevention and anti-theft functions of the fourth invention is
The invention is characterized in that a timer mechanism is provided which operates simultaneously with the release of the lock mechanism and the car key protrudes from the key holder body, and stores the car key in the key holder body after a predetermined time has elapsed.
[0011]
The drunk driving and / or anti-theft function key device of the fifth invention is
A hollow key holder body;
An automobile key provided so as to be able to appear and retract from the tip of the key holder body;
A cylinder that is connected to the rear end of the automobile key, and that can receive a pressing force from a spring means and move to the left and right within the key holder body in accordance with the central axis of the automobile key;
The cylinder is locked at a rear end position in the key holder body, and includes a locking means for locking the automobile key in the key holder body,
The locking means indicates an AND output of an electrical signal indicating fingerprint matching from the fingerprint determining means and an electrical signal output when the alcohol concentration from the alcohol concentration determining means is below a reference value, and indicates fingerprint matching. The vehicle key protrudes from the key holder body by releasing the lock mechanism when there is either an electric signal only or an electric signal only when the alcohol concentration is below the reference value. It is characterized by.
[0012]
[Action]
In the key device with drunk driving prevention and anti-theft functions according to the present invention, first, a fingerprint of a human holding the key device is detected by a fingerprint detection sensor by a fingerprint detection means. This detection signal is sent to the first comparison / calculation means, compared with the fingerprint registration data registered in advance, and outputted to the fingerprint determination means. Only when the registered fingerprint data matches the fingerprint collected by the fingerprint detection sensor, the fingerprint determination means outputs, for example, an “H” level electrical signal to the AND circuit, and the collected fingerprint matches the registered data. If not, an “L” level electrical signal is output.
[0013]
Next, the alcohol concentration detection means detects the alcohol concentration of a person who has drunk alcohol as a degree of change in electrical resistance from a human sweat by a metal oxide semiconductor sensor or the like, and uses this as an electrical signal for a second comparison / calculation. Enter the means.
The second comparison / calculation processing means receives a reference value predetermined by the reference value setting means, is compared / calculated with the previously detected electric signal, and is detected by the alcohol concentration determination means at the next stage. When the alcohol concentration is lower than the reference value, for example, an “H” level electric signal is output to the AND circuit, and when the detected alcohol concentration is higher than the reference value, the “L” level electric signal is output. Is output to the AND circuit.
[0014]
Thus, when the electrical signals input to the AND circuit are both at the “H” level, that is, when the fingerprint matches the registered fingerprint of the person and the alcohol concentration is equal to or lower than the reference value, the AND circuit outputs “ The electric signal of “H” level is output as a so-called OK signal.
[0015]
This OK signal is sent to the lock mechanism of the key device, the lock is released, and the automobile key protrudes from the tip of the key body and can be used.
After that, it can be used as a door opening and closing key and an engine starting key in the same manner as a normal automobile key.
In addition, you may prepare the key for opening and closing a door separately as needed.
[0016]
On the other hand, the OK signal is simultaneously sent to the timer circuit, and the timer circuit starts timing simultaneously with the release of the lock mechanism of the key device. After a certain period of time, for example, the electromagnet is energized and pushed out from the key holder body. The automobile key thus made is pulled back into the holder body, and the initial state is restored.
[0017]
With the above configuration, when the fingerprint detected by the fingerprint detection unit does not match the registered data registered in advance or when the alcohol concentration detected by the alcohol concentration detection unit is equal to or higher than a predetermined reference value, so-called OK is performed. Since the signal is not output from the AND circuit and the automobile key does not protrude from the holder body, it becomes unusable and theft prevention and drunk driving of the person can be prevented.
[0018]
It should be noted that an anti-theft function or a drunk driving prevention function can be achieved even with an apparatus provided with only the fingerprint detection means or the alcohol concentration detection means, instead of both the fingerprint detection means and the alcohol concentration detection means. It is effective in that
Further, when the OK signal is output, for example, the green LED is turned on, and when the NO signal is output from the fingerprint determination unit 4 or the alcohol concentration determination unit, for example, the display unit 16 that turns on the red LED, for example. May be provided.
[0019]
Embodiment
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a block diagram showing a drunk driving prevention and anti-theft key device of the present invention.
In the figure, reference numeral 1 denotes fingerprint detection means, for example, a liquid crystal fingerprint detection sensor is used. Reference numeral 2 denotes a first comparison / calculation unit, which compares and calculates the fingerprint detected by the fingerprint detection unit and the fingerprint registration data 3 registered in advance. Then, the calculation processing result is sent to the fingerprint determination unit 4, and when the fingerprint detected by the fingerprint determination unit 4 matches the registered fingerprint, an “H” level electric signal is sent to the AND circuit 5. .
[0020]
Next, reference numeral 6 is an alcohol concentration detection means, which extracts the volatile component from, for example, human sweat and detects the degree of change in electrical resistance by a metal oxide semiconductor sensor or the like, This is input to the second comparison / calculation means 7 as an electric signal. The second comparison / calculation means 7 is inputted with a reference value of alcohol concentration determined in advance by the reference value setting means 17.
Such a reference value is preferably set from the standpoint of effectively preventing dangerous drunk driving, but at least an alcohol concentration of “0.15 mg / liter or less”, which is a standard for “dribbling driving” defined by laws and regulations. A good standard is appropriate.
[0021]
The output of the second comparison / calculation means 7 is sent to the alcohol concentration determination means 8, which determines the “H” level when the alcohol concentration detected by the alcohol concentration detection means 6 is below the reference value. Is output to the AND circuit 5.
In the AND circuit 5, when the signal from the fingerprint determination unit 4 is “H” level and the signal from the alcohol concentration determination unit 8 is “H” level, a so-called OK signal that enables the use of the car key is generated. It is sent to the lock mechanism 9.
Of course, the input and output to the AND circuit 8 may be inverted between the “H” level and the “L” level.
[0022]
When the lock mechanism 9 is released, the automobile key projects by receiving the spring force of the coil spring from the distal end portion of the key holder body, which will be described later, by the automobile key projecting means 10 and can be used.
After that, as with a normal car key, the car door is opened with the car key and the engine is started (step 11).
Next, the engine is stopped, the car key is removed from the ignition switch, and the door is locked (steps 12 and 13).
In such a case, since the automobile key is rotated in the opposite direction to the unlocking for locking, the switch provided in the key holder body is operated using this turning action, and the automobile key is placed in the key holder body. Store (step 14).
[0023]
On the other hand, the OK signal is sent to the timer circuit 15 at the same time, and timing is started simultaneously with the release of the lock mechanism 9 of the key device. Then, after a certain period of time has elapsed, for example, the automobile key energized by the electromagnet and pushed out from the key holder body is pulled back into the holder body to return to the initial state.
Next, an embodiment of the present invention will be described with reference to FIGS.
[0024]
【Example】
2 and 3 are diagrams schematically showing the interior of the key device with drunk driving prevention and anti-theft functions of the present invention. FIG. 2 shows a state in which the automobile key is housed in the key holder body. FIG. 3 shows a state in which the automobile key protrudes from the key holder body. FIG. 4 is an external perspective view of the key device with drunk driving prevention and anti-theft functions of the present invention.
In these drawings, the key device 20 includes a flat and hollow key holder body 21. The key holder main body 21 is provided with an automobile key 22 so that the key holder main body 21 can be projected and retracted from the tip end portion 21a.
[0025]
The key holder body 21 is connected to the rear end portion 22a of the automobile key 22 and receives the pressing force from a spring means 23 such as a coil spring so as to coincide with the central axis of the automobile key 22 in the left-right direction. A moving cylinder 24 with one end opening is provided in the key holder body 21.
[0026]
The key device 20 includes locking means 25 </ b> A for locking the cylinder key 24 in the key holder body 21, with the cylinder 24 locked at the position of the rear end 21 b in the keyholder body 21.
The locking means 25A includes an electrical signal indicating fingerprint matching from the fingerprint determining means 1, an AND output output when the alcohol concentration from the alcohol concentration determining means 6 is equal to or lower than a reference value, and an electricity indicating fingerprint matching. The vehicle key 22 protrudes from the key holder body 21 when the lock mechanism is released when there is a signal alone or only an electric signal output when the alcohol concentration is below the reference value. .
[0027]
That is, by energizing the first electromagnet 26, the first lever 27 is attracted, and the first locking claw 28 provided at the tip of the lever 27 is separated from the bottom end 24a of the cylindrical body 24. The cylindrical body 24 is pressed in the direction of arrow A in FIG. As a result, the automobile key 22 connected to the bottom end 24 a of the cylindrical body 24 moves in the left direction and protrudes from the tip end 21 a of the key holder body 21 to the outside. This state is shown in FIG.
[0028]
In the case of the above operation, since the second electromagnet 29 is not energized, the second lever of the locking means 25B is not attracted, and the bottom end 24a of the cylindrical body 24 is FIG. 3 shows a state in which the locking claw 31 moves forward so as to push the locking claw 31 outwardly against the spring force of the lever spring 32 of the locking claw 31.
[0029]
In the state of FIG. 3, the second locking claw 31 regulates the open end of the cylindrical body 24 and presses the cylindrical body 24 leftward by the spring force of the spring means 23. The protruding automobile key 22 is not returned into the main body 21 by an external force.
[0030]
Further, a switch 33 is provided in the key holder main body 21, and this switch 33 is a switch that operates when the car key 22 of FIG. 3 protrudes and rotates in the locking direction. The electric circuit is configured so that the second electromagnet 29 is energized when the door lock step 13 shown in FIG.
[0031]
Therefore, when the car key 22 is rotated in the locking direction in step 13 and the door is locked, the switch 33 is activated, the second electromagnet 29 is energized, and the rear end of the second lever 30 is attracted. As a result, the second locking claw 31 is detached from the open end of the cylindrical body 24. Thereby, if the front-end | tip part of the key 22 for motor vehicles is pushed, it can accommodate in a key holder main body.
In the above description, it has been described that the car key 22 protrudes automatically from the key holder body 21 and is manually performed when stored, but the reverse relationship may be used. Both operations may be automatically performed.
[0032]
FIG. 4 is an external view of the key device 20 of the present invention. A fingerprint detection sensor unit 34 such as a touch panel is provided as a fingerprint detection unit 1 shown in FIG. Yes. A battery storage unit 35 stores a button battery for driving the detection circuit of the present invention as a whole.
[0033]
Further, an alcohol concentration detection sensor (not shown) is provided on the other side surface of the key holder body 21 as the alcohol concentration detection means 6 similarly shown in FIG. 1 at a position corresponding to the fingerprint detection sensor 34. The fingerprint detection sensor 34 and the alcohol concentration detection sensor are provided at positions opposite to each other. For example, in the case of a right-handed person, the thumb touches the fingerprint detection sensor, and the index finger touches the alcohol concentration detection sensor 35. This is because the detection values can be easily obtained by operating them simultaneously.
[0034]
Further, on the other side substantially opposite to the battery housing 35, a green LED and a red LED (not shown) are provided as the display means 16 shown in FIG. 1, and these LEDs are provided on the output side of the AND circuit 5, They are connected to the output side of the fingerprint determination means 4 and the output side of the alcohol concentration detection means 8, respectively.
Note that the display means 16 may be omitted without providing the basic operation of the key device 20 of the present invention.
[0035]
Further, in the above embodiment, the fingerprint registration data 3 has been described as being placed in the key device 20 of the present invention, but this includes a large number of fingerprint registration data 3 at other fingerprint registration locations. You may make it construct | assemble the fingerprint collation system which transmits / receives via the car computer previously mounted in the motor vehicle from the key apparatus 20. FIG.
[0036]
【The invention's effect】
Since the present invention is configured as described above, it is not necessary to provide piping or the like for collecting the driver's breath in the automobile interior as in the prior art, and therefore, the occupied space in the automobile interior is not reduced, and the comparatively low There are excellent effects such as drunk driving prevention and / or theft prevention at cost.
[Brief description of the drawings]
FIG. 1 is a block diagram of a key device with drunk driving prevention and anti-theft functions of the present invention.
FIG. 2 is a schematic diagram showing an embodiment of the key device, in which a car key is housed in a key holder body.
FIG. 3 is a schematic view showing a state in which the automobile key protrudes from the key holder body.
FIG. 4 is an external perspective view of the key device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Fingerprint detection means 2 1st comparison and calculation means 3 Fingerprint registration data 4 Fingerprint determination means 5 AND circuit 6 Alcohol concentration detection means 7 2nd comparison calculation circuit 8 Alcohol concentration determination means 9 Lock mechanism 10 Key protrusion means 11 for cars Door / engine start step 12 Engine stop / key extraction step 13 Door lock step 14 Key holder body storage step 15 Timer circuit 16 Display means 17 Reference value setting means 20 Key device 21 Key holder body 22 Automotive key 23 Spring means 24 Cylindrical body 25A, 25B Locking means 26 First electromagnet 27 First lever 28 First locking claw 29 Second electromagnet 30 Second lever 31 Second locking claw 32 Lever spring 33 Switch 34 Fingerprint detection sensor 35 Battery compartment

Claims (5)

Fingerprint detection means for recognizing a human fingerprint and converting it into an electrical signal;
A first comparison calculation means for comparing and calculating a fingerprint detected by the fingerprint detection means and fingerprint registration data registered in advance;
A fingerprint determination unit that receives the output of the comparison calculation unit and determines whether the fingerprint of the registered data matches the fingerprint detected by the detection unit;
Alcohol concentration detection means for detecting the alcohol concentration of the same human being converted into an electrical signal; and
A second comparison calculation means for comparing and calculating an electric signal from the alcohol concentration detection means and a predetermined alcohol concentration reference value;
Alcohol concentration determination means for receiving an output from the second comparison calculation means and outputting an electrical signal when the alcohol concentration detected by the alcohol concentration detection means is less than or equal to a reference value;
When the electrical signal indicating fingerprint matching from the fingerprint determination means and the electrical signal output when the alcohol concentration from the alcohol concentration determination means is below a reference value are AND-output, the lock mechanism is released and the key holder Car key projecting means for projecting the car key from the main body;
A key device with a drunk driving prevention and anti-theft function characterized by comprising: Alcohol concentration detection means for detecting human alcohol concentration by converting it into an electrical signal;
A comparison calculation means for comparing and calculating an electric signal from the alcohol concentration detection means and a predetermined alcohol concentration reference value;
Alcohol concentration determination means for receiving an output from the comparison calculation means and outputting an electrical signal when the alcohol concentration detected by the alcohol concentration detection means is less than or equal to a reference value;
An automobile key projecting means for projecting an automobile key from the key holder body by releasing the lock mechanism by an electrical signal output when the alcohol concentration from the alcohol concentration judging means is below a reference value;
A key device with a drunk driving prevention function characterized by comprising at least Fingerprint detection means for recognizing a human fingerprint and converting it into an electrical signal;
A comparison calculation means for comparing and calculating the fingerprint detected by the fingerprint detection means and fingerprint registration data registered in advance;
A fingerprint determination unit that receives the output of the comparison calculation unit and determines whether the fingerprint of the registered data matches the fingerprint detected by the detection unit;
When an electrical signal indicating fingerprint matching is output from the fingerprint determination means, the car key projecting means for unlocking the car mechanism and projecting the car key from the key holder body;
A key device with an anti-theft function, characterized by comprising:   2. The timer mechanism according to claim 1, further comprising: a timer mechanism in which the car key is housed in the key holder body after a certain period of time at the same time when the lock mechanism is released and the car key protrudes from the key holder body. Key device with drunk driving prevention and anti-theft functions. A hollow key holder body;
An automobile key provided so as to be able to appear and retract from the tip of the key holder body;
A cylindrical body connected to the rear end portion of the automobile key, and capable of moving left and right within the key holder body in accordance with the central axis of the automobile key under a pressing force from a spring means;
The cylinder is locked at a rear end position in the key holder body, and includes a locking means for locking the automobile key in the key holder body,
The locking means indicates an AND output of an electrical signal indicating fingerprint matching from the fingerprint determining means and an electrical signal output when the alcohol concentration from the alcohol concentration determining means is below a reference value, and indicates fingerprint matching. The vehicle key protrudes from the key holder body by releasing the lock mechanism when there is either an electric signal only or an electric signal only when the alcohol concentration is below the reference value. The key device with a drunk driving prevention and / or anti-theft function according to any one of claims 1 to 4.

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